cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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safe-syscall.S (997B)

      1/*
      2 * safe-syscall.S : include the host-specific assembly fragment
      3 * to handle signals occurring at the same time as system calls.
      4 *
      5 * Written by Peter Maydell <peter.maydell@linaro.org>
      6 *
      7 * Copyright (C) 2016 Linaro Limited
      8 *
      9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
     10 * See the COPYING file in the top-level directory.
     11 */
     12
     13#include "hostdep.h"
     14#include "target_errno_defs.h"
     15
     16/* We have the correct host directory on our include path
     17 * so that this will pull in the right fragment for the architecture.
     18 */
     19#ifdef HAVE_SAFE_SYSCALL
     20#include "safe-syscall.inc.S"
     21#endif
     22
     23/* We must specifically say that we're happy for the stack to not be
     24 * executable, otherwise the toolchain will default to assuming our
     25 * assembly needs an executable stack and the whole QEMU binary will
     26 * needlessly end up with one. This should be the last thing in this file.
     27 */
     28#if defined(__linux__) && defined(__ELF__)
     29.section        .note.GNU-stack, "", %progbits
     30#endif